if (window != top) top.location.href = location.href;
NS4 = (document.layers) ? 1 : 0;
IE4 = (document.all) ? 1 : 0;
ver4 = (NS4 || IE4) ? 1 : 0;


function swapImage(imgName,newImg){
        if ((navigator.appName == 'Netscape' && parseFloat(navigator.appVersion) >= 3) || (parseFloat(navigator.appVersion) >= 4)){
                eval('document.' + imgName + '.src = "' + newImg + '"');
        }
}